<html><head>
<title>Testcase bug 364220 - [reflow branch][columns] Crash [@ nsLineLayout::ReflowFrame] using moz-column-count, floats, generated content and first-line</title>
<style>
body > span::first-line { }
span::before { content:"before text"; border:3px solid black;}
</style>
</head>
<body>

<span style=" float: left; -moz-column-count: 2;">
  <span style="float: right;">
    <span style=" float: right;-moz-column-count: 2;"></span>
  </span>
</span>

</body>
</html>